symptoms
Symptoms
- circleWilted shoot tips resembling a shepherd's crook
- circleBlossoms turn brown and shrivel
- circleBark cankers
help
Causes
Caused by Erwinia amylovora. Spreads through insects during bloom and rain splash.
healing
Treatment
Prune 30cm below infected tissue. Sterilise tools between cuts. Apply copper bactericide.
shield
Prevention
Resistant varieties. Avoid excess nitrogen fertiliser. Copper spray at bloom.